引发效率

低引发效率、宽分子量分布与引发剂的聚集状态有关。

The low initiator efficiency and broad MWD was related to association state of initiator .

-40℃时分子量分布比较窄，但引发效率也比较低（大约15%）。

At - 40 ℃, PMMA with relative narrow MWD and high syndiotactic can be synthesized , but at the same time , the initiator efficiency of PhOCu / n-BuLi is low , about 15 % .

叔胺能敏化MI，提高MI的引发效率，从而提高光固化速度。

The photo curing was sensitized by tertiary amines .

聚合速率与过氧键浓度的1/2次方成正比。基于JWEB50中活性基团等活性假设、长链假定以及引发效率相等假定，建立了JWEB50引发St本体聚合的动力学模型。

And it is proportional to the square of the concentration of O-O group . A kinetic model for polymerization rate of St was established based on the hypothesis of equal reactivity , long chain assumption and under the quasi steady state .

当用CuCl代替CuBr为催化剂时，MMA在EAc中的聚合反应为一可控聚合过程，引发效率为0.84。

However , when the CuCl / bpy was chosen as catalyst instead of CuBr / bpy , the polymerization was controlled with lower initiating efficiency ( 0.84 ) .

在PCS中加入DCP时，虽然能使PCS的高温裂解产率有一定程度的提高，但DCP的引发效率不高，当DCP含量小于10%时，PCS分子主要是线性增长或形成支化结构。

Limited increase of pyrolysis yield of PCS with DCP was found , indicating the lower initiation effeciency of DCP . When DCP content was less than 10 % ( mass ), the PCS macromolecules were mainly in linear growth or branched structures .

光敏剂的加入可提高光引发效率；

The addition of photosensitizer could improve the efficiency of photoinitiation .

不仅降低了光引发效率还对产品质量和安全造成了影响。

Not only reduces the light efficiency but also has an impact on product quality and safety .

引发效率为0.11。

Initiation efficiency was 0.11 . Chain termination rate constant kt was calculated with the experiment data of radical concentration R.

硫代苯甲酸-S-苯酯（BPFBN）是一种对烯类单体的聚合具有较高引发效率的引发剂.该类化合物分子的α断裂发生在三重态中间体。

S - phenyl thiobenzoate derivatives are a new class of photoinitiator with high efficiency of photoinitiation for polymerization of vinyl monomers .

为解决此问题，本文合成了一些新的碘鎓盐和硫鎓盐，并用凝胶时间方法考察了它们的光引发效率。

In order to overcome this limitation , a number of novel iodonium salts and sulfonium salts were prepared and their photoactivity for cationic polymerization were investigated by gel time studies .

与2-丁烯酸酯相比，α-甲基丙烯酸酯的阴离子聚合易于控制，引发效率高、所得聚合物分子量分布窄。

It is found that the anionic polymerization of alkyl methacrylate is easier than that of alkyl crotonate , that is , the initiation efficiency is higher and molecular weight distribution of the polymer obtained is narrower .

引发剂效率不包括因诱导分解所浪费的引发剂。

The initiator efficiency is considered exclusive of any initiator wastage by induced decomposition .

高转化自由基本体聚合的数学模拟&三段聚合模型Ⅱ.数均相对分子质量和引发剂效率

Mathematical Simulation of Bulk Free Radical Polymerization at High Conversion & Three Stage Polymerization Model ⅱ . Number-Average Molecular Weight and Initiator Efficiency

但超过某一临界点后，自信程度越高，越容易引发非效率并购，损害企业价值。

But beyond a certain critical point , the higher the degree of confidence , the more easily lead to inefficient M & A , and make a negative effect to enterprise value .

基于光谱分析方法的光引发剂量子效率评估

Quantum Efficiency Evaluation for Photoinitiators Based on Spectral Analysis

但是过于笼统的免税规则往往导致滥用税收优惠，从而引发无谓的经济效率损失。

But the comprehensive exemption regulation can lead to the abuse of the tax preferences , which can cause deadweight economic loss .

结果表明：硝酸铈铵引发剂的引发效率高，聚合速度快，树脂的吸水能力强。

The results showed that the Ammonium Ceric Nitrate used as initiator is high effective , the rate of polymerization reaction is satisfactory and the capacity of water-absorption for the resin is high .

五是较为深入分析了我国高教产业化可能引发的公平与效率的矛盾、过度教育、教育质量下滑以及忽视人的全面发展等负面后果，并提出了解决办法；

Fifthly , the possible negative results - conflict between equality and efficiency , over-education , sliding of education quality and ignorance of people 's overall development - are analyzed profoundly and solutions are suggested .

此外，还探讨了BPPD引发笨乙烯聚合的活性和引发效率的问题，对BPPD的分解机理作了初步的解释。

A examination about initiator efficiency and activity in polymerization of styrene , and a explanation for the mechanism of BPPD decomposition were made .

在α-羟基酮衍生物中185的引发活性又远远高于1173与184。复合型光引发体系和光引发剂与助引发剂联用的引发效率明显高于单一引发剂体系。

In the derivative of α - hydroxy ketone , 185 has higher activity than 1173 and 184 . Compound photoinitiators and coinitiators have obvious higher activity than single initiator .

引发活性与其结构之间的关系表明：改变生色团的结构与BP的分枝数目，可以控制和优化可见光聚合引发效率。

Relationship between the initiating activity and the structure showed that visible light polymerization initiating effect could be controlled and optimized by changing chromophore structures as well as branching number of the BP segment .